Office codebase is soon going to probably be older than most people that work on it.
I don't have a good guess for the average age of software developers at Microsoft, but claude.ai guesses the average "around 33-38 years" and the median "around 35-36 years old".
To my ears this is the equivalent of "some guy down the pub said", but maybe I am a luddite.
Also, the Office codebase is significantly larger than Windows (and has been for a while), that was surprising to me.